kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 1 | package sarama |
| 2 | |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 3 | // ApiVersionsResponseKey contains the APIs supported by the broker. |
| 4 | type ApiVersionsResponseKey struct { |
| 5 | // Version defines the protocol version to use for encode and decode |
| 6 | Version int16 |
| 7 | // ApiKey contains the API index. |
| 8 | ApiKey int16 |
| 9 | // MinVersion contains the minimum supported version, inclusive. |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 10 | MinVersion int16 |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 11 | // MaxVersion contains the maximum supported version, inclusive. |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 12 | MaxVersion int16 |
| 13 | } |
| 14 | |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 15 | func (a *ApiVersionsResponseKey) encode(pe packetEncoder, version int16) (err error) { |
| 16 | a.Version = version |
| 17 | pe.putInt16(a.ApiKey) |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 18 | |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 19 | pe.putInt16(a.MinVersion) |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 20 | |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 21 | pe.putInt16(a.MaxVersion) |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 22 | |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 23 | if version >= 3 { |
| 24 | pe.putEmptyTaggedFieldArray() |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 25 | } |
| 26 | |
| 27 | return nil |
| 28 | } |
| 29 | |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 30 | func (a *ApiVersionsResponseKey) decode(pd packetDecoder, version int16) (err error) { |
| 31 | a.Version = version |
| 32 | if a.ApiKey, err = pd.getInt16(); err != nil { |
| 33 | return err |
| 34 | } |
| 35 | |
| 36 | if a.MinVersion, err = pd.getInt16(); err != nil { |
| 37 | return err |
| 38 | } |
| 39 | |
| 40 | if a.MaxVersion, err = pd.getInt16(); err != nil { |
| 41 | return err |
| 42 | } |
| 43 | |
| 44 | if version >= 3 { |
| 45 | if _, err := pd.getEmptyTaggedFieldArray(); err != nil { |
| 46 | return err |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | return nil |
| 51 | } |
| 52 | |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 53 | type ApiVersionsResponse struct { |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 54 | // Version defines the protocol version to use for encode and decode |
| 55 | Version int16 |
| 56 | // ErrorCode contains the top-level error code. |
| 57 | ErrorCode int16 |
| 58 | // ApiKeys contains the APIs supported by the broker. |
| 59 | ApiKeys []ApiVersionsResponseKey |
| 60 | // ThrottleTimeMs contains the duration in milliseconds for which the request was throttled due to a quota violation, or zero if the request did not violate any quota. |
| 61 | ThrottleTimeMs int32 |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 62 | } |
| 63 | |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 64 | func (r *ApiVersionsResponse) encode(pe packetEncoder) (err error) { |
| 65 | pe.putInt16(r.ErrorCode) |
| 66 | |
| 67 | if r.Version >= 3 { |
| 68 | pe.putCompactArrayLength(len(r.ApiKeys)) |
| 69 | } else { |
| 70 | if err := pe.putArrayLength(len(r.ApiKeys)); err != nil { |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 71 | return err |
| 72 | } |
| 73 | } |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 74 | for _, block := range r.ApiKeys { |
| 75 | if err := block.encode(pe, r.Version); err != nil { |
| 76 | return err |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | if r.Version >= 1 { |
| 81 | pe.putInt32(r.ThrottleTimeMs) |
| 82 | } |
| 83 | |
| 84 | if r.Version >= 3 { |
| 85 | pe.putEmptyTaggedFieldArray() |
| 86 | } |
| 87 | |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 88 | return nil |
| 89 | } |
| 90 | |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 91 | func (r *ApiVersionsResponse) decode(pd packetDecoder, version int16) (err error) { |
| 92 | r.Version = version |
| 93 | if r.ErrorCode, err = pd.getInt16(); err != nil { |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 94 | return err |
| 95 | } |
| 96 | |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 97 | var numApiKeys int |
| 98 | if r.Version >= 3 { |
| 99 | numApiKeys, err = pd.getCompactArrayLength() |
| 100 | if err != nil { |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 101 | return err |
| 102 | } |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 103 | } else { |
| 104 | numApiKeys, err = pd.getArrayLength() |
| 105 | if err != nil { |
| 106 | return err |
| 107 | } |
| 108 | } |
| 109 | r.ApiKeys = make([]ApiVersionsResponseKey, numApiKeys) |
| 110 | for i := 0; i < numApiKeys; i++ { |
| 111 | var block ApiVersionsResponseKey |
| 112 | if err = block.decode(pd, r.Version); err != nil { |
| 113 | return err |
| 114 | } |
| 115 | r.ApiKeys[i] = block |
| 116 | } |
| 117 | |
| 118 | if r.Version >= 1 { |
| 119 | if r.ThrottleTimeMs, err = pd.getInt32(); err != nil { |
| 120 | return err |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | if r.Version >= 3 { |
| 125 | if _, err = pd.getEmptyTaggedFieldArray(); err != nil { |
| 126 | return err |
| 127 | } |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 128 | } |
| 129 | |
| 130 | return nil |
| 131 | } |
| 132 | |
| 133 | func (r *ApiVersionsResponse) key() int16 { |
| 134 | return 18 |
| 135 | } |
| 136 | |
| 137 | func (r *ApiVersionsResponse) version() int16 { |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 138 | return r.Version |
| 139 | } |
| 140 | |
| 141 | func (r *ApiVersionsResponse) headerVersion() int16 { |
| 142 | // ApiVersionsResponse always includes a v0 header. |
| 143 | // See KIP-511 for details |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 144 | return 0 |
| 145 | } |
| 146 | |
| 147 | func (r *ApiVersionsResponse) requiredVersion() KafkaVersion { |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 148 | switch r.Version { |
| 149 | case 0: |
| 150 | return V0_10_0_0 |
| 151 | case 3: |
| 152 | return V2_4_0_0 |
| 153 | default: |
| 154 | return V0_10_0_0 |
| 155 | } |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 156 | } |